1. Althaus, M. P., Da Silva Matos, I., Dutschmann, J., Sharma, A.-M., & Wilken, O. (2018). The digital economy in Germany issue 2018/2019. Berlin: Germany trade and invest. https://www.gtai.de/GTAI/Content/EN/Invest/_SharedDocs/Downloads/GTAI/Fact-sheets/Business-services-ict/fact-sheet-digital-en.pdf?v=3. Accessed 22 Jan 2020.
2. Benevolo, C., Dameri, R. P., & D’Auria, B. (2016). Smart mobility in smart city. In T. Torre, A. M. Craccini & R. Spinelli (Eds.), Empowering organizations—enabling platforms and artefacts (pp. 13–28). Cham: Springer. https://doi.org/10.1007/978-3-319-23784-8_2.
3. Berger, R., Romeo, M., Gidion, G., & Poyato, L. (2016). Media use and technostress. In L. Gómez Chova, A. López Martínez & I. Candel Torres (Eds.), INTED 2016 proceedings. 10th International Technology, Education and Development Conference. Valencia: IATED Academy.
4. Brod, C. (1984). Technostress: the human cost of the computer revolution. Reading: Addison-Wesley.
5. Cambre, M. A., & Cook, D. L. (1985). Computer anxiety: definition, measurement, and correlates. Journal of Educational Computing Research, 1, 37–54. https://doi.org/10.2190/FK5L-092H-T6YB-PYBA.